{"record":{"id":"0965e88924c258ac","repo":"nautechsystems/nautilus_trader","slug":"binancespothttperror-validationerror-message-into","errorCode":null,"errorMessage":"BinanceSpotHttpError::ValidationError(message.into())","messagePattern":"BinanceSpotHttpError::ValidationError\\(message\\.into\\(\\)\\)","errorType":"exception","errorClass":"BinanceSpotHttpError::ValidationError","httpStatus":null,"severity":"error","filePath":"crates/adapters/binance/src/spot/http/client.rs","lineNumber":2590,"sourceCode":"    /// Returns the SBE schema ID.\n    #[must_use]\n    pub const fn schema_id() -> u16 {\n        SBE_SCHEMA_ID\n    }\n\n    /// Returns the SBE schema version.\n    #[must_use]\n    pub const fn schema_version() -> u16 {\n        SBE_SCHEMA_VERSION\n    }\n\n    /// Generates a timestamp for initialization.\n    fn generate_ts_init(&self) -> UnixNanos {\n        self.clock.get_time_ns()\n    }\n\n    fn command_validation_error(message: impl Into<String>) -> anyhow::Error {\n        anyhow::anyhow!(BinanceSpotHttpError::ValidationError(message.into()))\n    }\n\n    fn response_parse_error(message: impl Into<String>) -> anyhow::Error {\n        anyhow::anyhow!(BinanceSpotHttpError::ResponseParseError(message.into()))\n    }\n\n    /// Retrieves an instrument from the cache.\n    fn instrument_from_cache(&self, symbol: Ustr) -> anyhow::Result<InstrumentAny> {\n        self.instruments_cache\n            .get_cloned(&symbol)\n            .ok_or_else(|| anyhow::anyhow!(\"Instrument {symbol} not in cache\"))\n    }\n\n    /// Caches multiple instruments.\n    pub fn cache_instruments(&self, instruments: Vec<InstrumentAny>) {\n        self.instruments_cache.rcu(move |cache| {\n            for instrument in &instruments {\n                cache.insert(instrument.raw_symbol().inner(), instrument.clone());","sourceCodeStart":2572,"sourceCodeEnd":2608,"githubUrl":"https://github.com/nautechsystems/nautilus_trader/blob/18893faf8b356be3320add8de2f861b0b647cf06/crates/adapters/binance/src/spot/http/client.rs#L2572-L2608","documentation":"command_validation_error wraps a message into BinanceSpotHttpError::ValidationError and returns it as an anyhow::Error. It is the adapter's standard way of reporting that a command (submit, modify, cancel, etc.) failed pre-flight validation before an HTTP request was made or based on a rejected response.","triggerScenarios":"Any spot HTTP client command whose parameters fail adapter validation — e.g. invalid symbol mapping, missing order fields, unsupported order type or time-in-force for Binance spot.","commonSituations":"Submitting order types Binance spot does not support (e.g. certain trailing-offset combos), wrong precision/quantity rounding, or strategy code constructing commands with invalid values.","solutions":["Read the wrapped message to identify the exact invalid field","Validate order parameters (type, TIF, precision) against Binance spot rules before submission","Check exchangeInfo filters (LOT_SIZE, PRICE_FILTER, NOTIONAL) during strategy setup","Update to latest adapter version if validation is overly strict"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":"// pre-validate against Binance spot rules: order type, TIF, quantity step, price tick\nassert!(matches!(order_type, LIMIT | MARKET | LIMIT_MAKER | STOP_LOSS..));\nassert!(qty % lot_size_step == 0);","typeGuard":null,"tryCatchPattern":"match result { Err(e) if e.to_string().contains(\"ValidationError\") => log_invalid_command_params(e), Err(e) => return Err(e), Ok(_) => continue }","preventionTips":["Load exchangeInfo filters and round prices/quantities to venue tick/step","Restrict strategy configs to Binance-spot-supported order types","Test commands against Binance testnet first"],"tags":["binance","validation","http-client"],"backgroundTag":"schema-validation-failed","analyzedSha":"18893faf8b356be3320add8de2f861b0b647cf06","analyzedAt":"2026-09-08T20:49:34.690Z","contentChangedAt":"2026-09-08T20:49:34.690Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}